The rapid development of new energy vehicles has also driven the development of related industries. Among them, the development of the power battery industry has attracted much attention.
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Recently, Tsinghua University's State Key Laboratory of Automotive Safety and Energy, Power Battery Safety Research Laboratory, Professor Ouyang Minggao's project team and Chuangwei New Energy reached a cooperative R&D intention.
The Power Battery Safety Research Office of Tsinghua University has long been committed to research on lithium-ion batteries, advanced materials and new chemical power sources, and has obtained a large number of research results. It has undertaken and completed a number of national projects and undertaken a number of national natural science fund projects. 863, 973 projects, international cooperation projects of the Ministry of Science and Technology. Laboratory in lithium ion battery oxide cathode material, sulfur polymer cathode material, alloy anode material, gel electrolyte, high specific energy lithium sulfur battery, lithium iron phosphate power battery, lithium titanate power battery and high safety power battery A lot of in-depth research work has been carried out in other areas, and a series of research results have been obtained.
Yantai Chuangwei New Energy Technology Co., Ltd. (referred to as “Chuangwei New Energyâ€) has deep research on battery safety, and is committed to the research of thermal battery thermal runaway technology, relying on proprietary technology – thermal battery thermal runaway model Developed a special automatic fire extinguisher for battery cases with a smart core. The company adheres to the concept of innovation, safety, versatility and reliability, and constantly upgrades and iterates to form a product system of “R&D generation, reserve generation, production generationâ€. In addition, Chuangwei New Energy Co., Ltd. has a product engineering institute and a technical research institute to keep up with the development trend of the new energy industry and maintain close cooperation with first-line new energy auto companies, electric vehicle companies and power battery companies.
From May 6th to 7th, 2017, Chuangxin participated in the first national lithium ion battery safety technology seminar and international forum. As the earliest researcher of domestic thermal battery thermal runaway warning and safety technology and the pioneer of special automatic fire extinguishing device for battery box, Chuangwei is the first "thermal out of control model of lithium ion battery" for new energy, leading the thermal runaway monitoring and automatic fire extinguishing technology of battery box. Scaled application.
Li Mingming, the director of the new energy technology, made an academic report on the technical application and case analysis of the “lithium ion battery thermal runaway model†at the forum. It will be the research work and achievements in the thermal runaway of lithium ion batteries in recent years. Reported.
The thermal runaway model of the lithium-ion battery is horizontal, vertical and vertical three-dimensional, and the longitudinal multi-sensor data is cumbersome, that is, multiple pairs of sensor data in the same environment are fitted to simulate data of different materials and different environments. Characterizing the curve, reliable and accurate judgment of the fire stage; horizontally is a continuous time algorithm for the historical data of the sensor to eliminate noise interference, effectively solving the problem of false negatives, false alarms and early warning lag of the traditional threshold method monitoring method, achieving early reliability Early warning; vertical method using puncture, blunt needle backlog and other methods to simulate the thermal runaway process of different types of power batteries. Through three-dimensional fusion, using mathematical methods, based on a large number of experiments and real-life data, the internal relationship between various variables caused by thermal runaway is summarized, and the neurological principle is used to form a very early, highly reliable, self-operating "lithium ion". Battery thermal runaway model to achieve early warning and intelligent control of battery fire hazards. The early warning examples of a large number of real vehicle operations prove the validity and advancement of this model.
In this report, the case of the thermal runaway early warning of multiple leaks discovered in the actual operation of the battery box-specific automatic fire extinguishing device was highly regarded by Tsinghua University and many participating experts and technicians. Also recognized and praised by industry experts.
Chuangwei New Energy was invited to visit the State Key Laboratory of Automotive Safety and Energy, Tsinghua University, and the Power Battery Safety Laboratory.
After the meeting, Dr. Feng Xuning, the State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Power Battery Safety Research Laboratory, and Professor Ouyang Minggao, specially invited Dr. Cheng Xinwei to the State Key Laboratory of Automotive Safety and Energy, Tsinghua University, and Research on Power Battery Safety. Visit the room and communicate for the first time on cooperative research and development.
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